PARALLEL-CONNECTED
SINUS PENTA MODELS
ASSEMBLY
INSTRUCTIONS
11/
24
4. ELECTRICAL SCHEMATIC FOR PARALLEL-CONNECTED DRIVES
Figure 4 shows the electrical schematic for the parallel-connected drives.
MASTER
FIRST
SLAVE
SLAVE
3
M
OUTPUT
REACTOR
GROUND
R
S
T
U
V
W
R
S
T
U
V
W
LAST
GROUND
R
S
T
U
V
W
GROUND
+
-
+
-
+
-
+
-
AC LINE
REACTOR
INPUT
FUSES
CIRCUIT
BREAKER
AC
POWER
SUPPLY
S000720
Figure 4: Electrical schematic for N.3 parallel-connected drives
CAUTION
Always install the fuse failure detection device, that disables the inverter, to
avoid single-phase operation of the equipment.
NOTE
If the application does not require any device connected to the DC bus (e.g.
a braking unit) or 12-pulse power supply, it is not necessary to connect to
each other the DC bus terminals of the drive.
